Not everybody considers himself as a "servant of God". To lead your life like that is respectable but of course your personal decision. I myself for example don't believe there is a God who expects to be served (which advantage would God have from humans serving him?). As an agnostic I leave the question unanswered if there is God, and if "yes" who he is and what he wants. Also this is 'freedom' to accept that different people are having different views on life.

Don't feel discouraged from this comment. I always respect religious people and their believes (as long as they respect my way of life as well). Have a great day! :)